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The enthalpy of fusion of methanol (CH3OH) is 3.16 kJ/mol. How much heat would be absorbed or released upon freezing 25.6 grams of methanol?
Calculate the pH of a solution that is .150 M in sodium formate and .200 M in formic acid (Ka=1.8*10^-4)
Working with partition function and entropy what is the ratio of the number of particles in the J= 14 to the J=4 level at a temperature of 1900 K?
A 280- mL flask contains pure helium at a pressure of 757 torr. A second flask with a volume of 465 mL contains pure argon at a pressure of 715 torr.
25.0 ml of 0.212 M NaOH ia neutralized by 13.6 ml of an HCl solution. The molarity of the NAOH solution is?
If 2.3g of sodium reacted with 1.8 of water, what would be the total mass of sodium hydroxide and hydrogen produced?
25 g of gold is initially 27 degrees celsius. what's the final temperature when absorbing 2.35 kJ of heat?
A basketball is inflated to a pressure of 1.50 atm in a 20.0C garage. What is the pressure of the basketball outside where the temperature is -5.00C.
An environmental chemist obtained a 200 mL sample of lake water believed to be cntaminated with a single monoprotic strong acid.
Description of Chemistry - Other, What is meant by Molality of a solution and Solute particles? Define. How many solute particles are there in 1m solution containing these substances in one kg of water?
What is the pH of 10 drops of triethylamine in a dropperful of demineralized water? How does the reaction between triethylamine and water explain the measurement of the pH?
a steel sphere has a radius of 1.58in. If this steel sphere has a density of 7.88g/cm3, what is the mass of the sphere in grams?
2NO(g) + O2(g) 2NO2(g) Given that we start with 0.035M NO(g) and 0.035M O2(g) AND end with 0.012M NO2.
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